My next Bloom Day flower isn't nearly as spectacular as the daylily, but it's a plant that's becoming increasingly popular in London. It has a fragrance to die for, it's evergreen, it attracts bees, it doesn't seem to attract pests, it doesn't run amok, and, in my garden at least, it grows quite happily on a north-facing wall or fence (though it flowers better in full sun). The name of this paragon is Trachelospermum jasminoides. You may find it described as half-hardy in colder areas, but in London it easily survives the winter. It does quite well in a container, too.
For me, the whole point of growing Nicotiana is to have that fabulous scent. I love N. affinis and N. sylvestris, but there's no denying that the F1 bedding varieties are really tough and, in my experience, more slug-resistant. So it's nice to find a bedding variety in which fragrance is part of the package, rather than an accidental afterthought. This is N. 'Perfume' in a pale lime-green.